This name is a synonym of Symphyotrichum graminifolium (Spreng.) G.L.Nesom.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 0BF9E4CD-F064-46C4-8E6D-6E3489B0994C) with original publication details: 159 2001.
This name was in version 1 of The Plant List, record gcc-80731, and has not been changed.